Taking a break from cacti, and coming back to something 3D, Tedulibb resembles a box with paper clips inside. You can put any shape–circles, squares–inside the box. Notice the shading on the paper clips. It follows the shape one side. If you change the shape, the shading will still be on one side, but will follow the new shapes.
Laughing at the poor crated sheep!
He likes it there! At least, I keep telling myself that!